Die casting machine



Jan. 16, 1940. H.; KAL/IAN 2,187,239

DIE CASTING MACHINE Filed Oct. 6, 1959r ATTORNEY.

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Patented Jan. 16, 1940 e 2,181,239 1 DIE CASTING MACHINE Harry `J. Kalajan, `-Detroit,` Mich.

l t l `Application This application relates to die casting machines and more particularly to` improvements in the mounting arrangements for the pumps or goosenecks and the pump actuating cylinders commonly employed with such machines.

Generally speaking the mounting arrangement hereof is such that in a die casting machine having a die plate adjacent the melting pot of the machine, the pump or gooseneck and the cylinder are mounted directly on the die plate above lthe melting pot, and the cylinder above thepump or gooseneck.

For a more detailed description of the mounting arrangement hereof, reference may be had to the following specification which describes in detail the mounting arrangement illustrated in the appended drawing; in this drawing, i

Figs. 1 and 2 are side and front elevations `of parts of a die casting machine showing both the pump or gooseneck and the cylinder as mounted,

l one below the other, and both on and in front of a die plate. l l

Referring to the drawing, it will beobserved that it shows as part of a die casting machine,

a die plate IIJ adjacent and above a melting pot I I containing a batch of molten metal, gobs of which are to be pumped upwardly from the pot to the inlet port of the die plate of the machine ina manner well known to those acquainted with the art of die casting. Projecting forwardly from the front of the die plate II) are rigid elongated supports I2--I3 in the nature of threaded bolts, four being utilized in the embodiment illustrated. The

lowermost pair of such bolts, referenced I2, pass through holes formed in suitable bosses I4 at the upper corners of the pump or gooseneck I5 whose lower end is submerged in the molten metal within the pot` Il and whose discharge spout `IIi terminates in a nozzle I'I projecting into an inlet port (not illustrated) formed in the die plate. Suitable nuts I8 threaded o-n the bolts I2 anchor the gooseneck in place on these bolts and thus i provide a firm and sturdy support for the pump with the latter carried directly by the `die plate and adjustable on the boltstowards and from the die plate by manipulation ofthe nuts on the bolts.

The uppermost part of bolts, referenced I3, pass through holes in suitable bosses I3 of a cylinder bed 'forming the lower part of the actuating cylinder 2l for the pump or gooseneck of the machine; suitable nuts 22 threaded on the bolts I3 rigidly secure the cylinder in place on these bolts with the result that the entire cylinder is firmly and rigidly supported directly by the die plate, in place above the pump or gooseneck.

` bed, and the pump or gooseneck are placed suitthat the cylinder and pump are not made in one camper s, 1939, serial No. essais relatifs.` (cireroi Forminlfying the cantilever action on the bolts I2--I3, by tying together the free endsof the upper bolts to the free ends of the lower ones, links or struts 23 are provided. These have holes through which pass the free ends of the bolts I2-I3 and nuts threaded on the bolts firmly anchor the links or struts in place on the bolts.

Within the cylinder there reciprocates a piston 2,4 actuated from an airsupply line 25 entering the cylinder, and having its piston rod 26 cou- 10 pled by `a releasable coupling 21 to the plunger rod 28 which terminates in a plunger 23 reciprocating within the pump or gooseneck.

On the surfaces of the cylinder, the cylinder Il able markings, indicated by the vertically aligned X marks on the vertical center line of the cyl` `inder, cylinder bed, and pump or gooseneck. When the pump or gooseneck is properly located with respect to thedie plate so that its nozzle is 20 in proper juxtaposition to the inlet port of the die plate, and the four aligning marks indicated are properly aligned, assurance will be hadthat the cylinder andthe pumpA actuated thereby are in proper alignment, with relative adjustment being provided and maintained by manipulation of the nuts on the bolts.

The advantages of the mounting arrangement herein disclosed will readily be apparent. Among such advantages will be enumerated the follow- 30 ing. By release of the releasable coupling and by removal of certain of the nuts unitary casting. l s Further, because they are not made in one uni-` tary casting, replacement of the pump and repair and cleaning thereof when clogged may be effected without requiring the disturbance of the cylinder in any respect whateverand with in no way affecting the existing cylinder and at an expense far below the expense involved in perform-f ing similar operations on presently known con-` structions. Still further, due to the simplicity of the mounting arrangement, the ease of removing u and applying pumps or goosenecks is not aected to any marked extent by splatterings of molten metal from the machine, as contra-distinguished from presently known constructions where access to the elements which control removal of the pumps or goosenecks is impeded by the existence of splatterings of molten metal.

The simplicity of my mounting arrangements yrenders it unnecessary to go into further detail as to such mounting arrangements and the advantages of the same. Therefore, reference is now made to the claim which follows for a determination of the invention embodied in the herein illustrated die casting machine.

I claim: y

In a die casting machine, a die plate having a forwardly exposed surface, in front of, adjacent, and below which is a molten metal pot, a pump or gooseneck having an inlet port submerged in the pot and having a discharge nozzle in discharge cooperation with the die plate, and formations on the die plate and pump cooperating for detachably securing the pump directly on and in front of the die plate and above the pot, whereby the pump is supported directly from the die plate, and an actuating cylinder for said pump, and formations on the die plate and cylinder cooperating for detachably securing the cylinder directly on and in front of the die plate and above the pump, whereby the cylinder also is supported directly from the die plate, each set of formations comprising bolts xed in and projecting forwardly from the die plate, and holes in the pump or the cylinder through which pass the bolts, and nuts threaded on the bolts, and links or struts connecting the free ends of the bolts to tie such free ends to one another, there being a relatively large clear space between the lower part of the cylinder and the upper part of the pump whereby a transfer of heat from the pump to the cylinder is reduced to a minimum.

HARRY J. KALAJIAN. 

